대기 (Atmosphere)

  • 제33권3호
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  • Pages.307-317
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  • 2023
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  • 1598-3560(pISSN)
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  • 2288-3266(eISSN)
한국기상학회 (Korean Meteorological Society)
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2022년 발생한 기록적인 유럽 폭염 발생의 역학적 원인 규명 연구

Understanding Physical Mechanism of 2022 European Heat Wave

  • 김주헌 (부경대학교 지구환경시스템과학부 환경대기과학전공) ;
  • 양군환 (부경대학교 지구환경시스템과학부 환경대기과학전공) ;
  • 성현준 (부경대학교 지구환경시스템과학부 환경대기과학전공) ;
  • 박정현 (부경대학교 지구환경시스템과학부 환경대기과학전공) ;
  • 서은교 (부경대학교 지구환경시스템과학부 환경대기과학전공)
  • Ju Heon Kim (Department of Environmental Atmospheric Sciences, Pukyong National University) ;
  • Gun-Hwan Yang (Department of Environmental Atmospheric Sciences, Pukyong National University) ;
  • Hyun-Joon Sung (Department of Environmental Atmospheric Sciences, Pukyong National University) ;
  • Jung Hyun Park (Department of Environmental Atmospheric Sciences, Pukyong National University) ;
  • Eunkyo Seo (Department of Environmental Atmospheric Sciences, Pukyong National University)
  • 투고 : 2023.04.11
  • 심사 : 2023.05.23
  • 발행 : 2023.05.31
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초록

This study investigates the physical mechanisms that contributed to the 2022 European record-breaking heatwave throughout May-August (MJJA). The European climate has experienced surface warming and drying in the recent decade (1979~2022) which influences the development of the 2022 European heatwave. Since its spatial pattern resembles the 2003 European heatwave which is a well-known case developed by the strong coupling of near-surface conditions to land surface processes, the 2022 heatwave is compared with the 2003 case. Understanding heatwave development is carried out by the European Centre for Medium-Range Weather Forecasts (ECMWF) Reanalysis version 5 (ERA5) and daily maximum surface temperature released by NCEP (National Centers for Environmental Prediction) CPC (Climate Prediction Center). The results suggest that the persistent high pressure along with clear sky tends to increase the downward shortwave radiation which leads to enhanced sensible heat flux with the land surface dryness. Terrestrial Coupling Index (TCI), a process-based multivariate metric, is employed to quantitatively measure segmented feedback processes, separately for the land, atmosphere, and two-legged couplings, which appears to the development of the 2022 heatwave, can be viewed as an expression of the recent trends, amplified by internal land-atmosphere interactions.

키워드

과제정보

이 논문은 20 22학년도 부경대학교의 지원을 받아 수행된 연구임(202212460001).

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